<template>
  <header id="head_top">
    <!-- <slot name='search'></slot> -->
    <section class="head_goback" v-if="goBack" @click="$router.go(-1)">
      <svg
        width="100%"
        height="100%"
        xmlns="http://www.w3.org/2000/svg"
        version="1.1"
        viewBox="0 0 20 34"
      >
        <polyline
          points="24,34 4,17 24,0"
          style="fill: none; stroke: rgb(153, 153, 153); stroke-width: 4"
        />
      </svg>
    </section>
    <section
      class="head_main ellipsis"
      :class="{ head_main1: goBack, head_main2: showBtn }"
    >
      <input
        class="head_search"
        type="text"
        placeholder="请输入品牌或者商品名称"
        @blur="blur"
        v-model="cond"
        @focus="focus"
      />
    </section>
    <section class="head_bth" v-if="showBtn" @click="search">
      <div>搜索</div>
    </section>
    <!-- <slot name="msite-title"></slot> -->
  </header>
</template>

<script>
export default {
  data() {
    return {
      cond: "",
      showBtn: false,
      flag: "",
    };
  },
  created() {
    this.$watch("$router.query.key", this.search);
  },
  mounted() {
    this.flag = this.$route.query.flag;
    if (this.flag != 3 && this.flag != 5 && this.flag != 6) {
      this.cond = this.$route.query.key ? this.$route.query.key : "";
    }
  },
  props: ["goBack"],
  computed: {},
  methods: {
    focus() {
      this.showBtn = true;
    },
    blur() {
      //this.showBtn = false
    },
    search() {
      console.log(this.cond);
      this.$router.push({
        path: "/goodsList",
        query: { flag: 4, key: this.cond },
      });
    },
  },
  watch: {
    $route: function (value) {
      if (this.flag != 3 && this.flag != 5 && this.flag != 6) {
        this.cond = this.$route.query.key;
      }
    },
  },
};
</script>

<style lang="scss" scoped>
@import "../../style/mixin";

#head_top {
  background-color: $bgColor;
  position: fixed;
  z-index: 100;
  left: 0;
  top: 0;
  @include wh(100%, 1.08rem);
  box-shadow: 0 0.01rem 0.025rem rgba(0, 0, 0, 0.1);
}
.head_goback {
  position: absolute;
  top: 0;
  left: 0;
  svg {
    margin: 0.37rem 0.25rem;
    @include wh(0.2rem, 0.34rem);
    display: block;
  }
}
.head_main {
  position: absolute;
  top: 0.2rem;
  left: 0.2rem;
  right: 0.2rem;
  height: 0.68rem;
  z-index: 101;
  .head_search {
    display: block;
    @include wh(100%, 100%);
    border: 0.01rem solid $lineColor;
    border-radius: 0.1rem;
    padding-left: 0.6rem;
    line-height: 0.3rem;
    background: #fff url(../../images/searchIcon.png) no-repeat 0.2rem center;
    background-size: 0.3rem 0.28rem;
  }
}
.head_main1 {
  left: 0.7rem;
}
.head_main2 {
  right: 1rem;
}
.head_bth {
  position: absolute;
  right: 0;
  top: 0.2rem;
  width: 1rem;
  text-align: center;
  @include sc(0.3rem, #666);
  line-height: 0.68rem;
}
</style>
